What's Changed
* index: use sqltrie by efiop in https://github.com/iterative/dvc-data/pull/248
* index: build: support compute_hash and state flags by efiop in https://github.com/iterative/dvc-data/pull/261
* index: build: reuse info to minimize stat calls by efiop in https://github.com/iterative/dvc-data/pull/262
**Full Changelog**: https://github.com/iterative/dvc-data/compare/0.30.2...0.31.0